Hysteretic model of the grand piano hammer felt

1995 ◽  
Vol 97 (4) ◽  
pp. 2577-2585 ◽  
Author(s):  
Anatoli Stulov
Keyword(s):  
Hysteretic Model ◽  
Grand Piano

The woman who could not sing “Happy Birthday”: couple psychoanalysis at the baby grand piano

2020 ◽  
Vol 10 (1) ◽  
pp. 93-98
Author(s):  
Brett Kahr
Keyword(s):  
British Broadcasting Corporation ◽  
Happy Birthday ◽  
Television Programme ◽  
Grand Piano

This article describes the author’s work as a presenter on the four-part British Broadcasting Corporation television programme, 'Making Slough Happy', in which he used music and singing for therapeutic purposes. In particular, he offers a glimpse into how he helped a woman, gripped by long-standing vocal inhibitions, to achieve her dream of singing “Happy Birthday” to her child.

scholarly journals Dynamic Characteristics of the Bouc–Wen Nonlinear Isolation System

2021 ◽  
Vol 11 (13) ◽  
pp. 6106
Author(s):  
Zhiying Zhang ◽  
Xin Tian ◽  
Xin Ge
Keyword(s):  
Dynamic Characteristics ◽  
Seismic Isolation ◽  
Influence Factors ◽  
Harmonic Balance Method ◽  
Control Parameters ◽  
Hysteretic Model ◽  
Incremental Harmonic Balance Method ◽  
Isolation System ◽  
Nonlinear Dynamic Characteristics ◽  
Incremental Harmonic Balance

The Bouc–Wen nonlinear hysteretic model has many control parameters, which has been widely used in the field of seismic isolation. The isolation layer is the most important part of the isolation system, which can be effectively simulated by the Bouc–Wen model, and the isolation system can reflect different dynamic characteristics under different control parameters. Therefore, this paper mainly studies and analyzes the nonlinear dynamic characteristics of the isolation system under different influence factors based on the incremental harmonic balance method, which can provide the basis for the dynamic design of the isolation system.

Changes in English Grand Piano Actions between 1787 and 1792

1997 ◽  
Vol 50 ◽  
pp. 208
Author(s):  
Bjarne Dahl ◽  
John Barnes
Keyword(s):  
Grand Piano

scholarly journals Nonlinear Dynamics of a Vibratory Cone Crusher with Hysteretic Force and Clearances

2011 ◽  
Vol 18 (1-2) ◽  
pp. 3-12 ◽  
Author(s):  
Jing Jiang ◽  
Qing-Kai Han ◽  
Chao-Feng Li ◽  
Hong-Liang Yao ◽  
Shu-Ying Liu
Keyword(s):  
Nonlinear Dynamic Analysis ◽  
Deep Understanding ◽  
Degree Of Freedom ◽  
The Novel ◽  
Hysteretic Model ◽  
Dynamical Equations ◽  
Motion Patterns ◽  
Dynamical Behaviors ◽  
Cone Crusher ◽  
Two Degree Of Freedom

Based on the analysis on crushing process and hysteresis of material layers, a hysteretic model with symmetrical clearances is presented. The mechanical model of two-degree of freedom with bilinear hysteresis and its dynamical equations of system are proposed. In order to further investigate the dynamic characteristics of the novel vibratory cone crusher, the system is also simplified into a dynamical system of single degree of freedom with a bilinear hysteretic component together with clearances. According to some nonlinear dynamic analysis tools such as bifurcation diagram, Lyapunov exponents, Poincare section, etc., different motion patterns of the system are discussed, including periodic, periodic doubling, chaos and other characteristics. These theoretical results will provide readers with deep understanding on the regular and complex dynamical behaviors of the vibratory cone crusher due to the hysteresis with clearances.

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